<template>
    <div class="tab-bar-item" @click="itemClick">
        <div v-if="!isActive"><slot name="item-icon"></slot></div>
        <div v-else><slot name="item-icon-active"></slot></div>
        <!-- 插槽会被替换，所以先包一层 上面也可以这么写-->
        <div :style="activeStyle"><slot name="item-text"></slot></div>
    </div>
</template>
<script>
export default {
    props:{
        path:{
            String
        },
        activeColor:{
            String,
            default:'#ff5777'//默认的
        }
    },
    name:'TabBarItem',
    data() {
        return {
        }
    },
    computed: {
        isActive(){
            // this.$route.path拿到当前活跃的路由的path
            // console.log(this.$route.path)
            return this.$route.path.indexOf(this.path)!==-1
        },
        activeStyle(){
            return this.isActive?{color:this.activeColor}:{}
        }
    },
    methods: {
        itemClick(){
            // console.log(this.path)  就是 /home
            this.$router.replace(this.path)
        }
    },
}
</script>
<style scoped>
.tab-bar-item{
    flex: 1;
    font-size: 14px;
    text-align: center;
    height: 49px;
}
.tab-bar-item img{
    width: 24px;
    height: 24px;
    margin-top: 3px;
    vertical-align: middle;
    margin-bottom: 2px;
}

.active{
    color: palevioletred;
}
</style>